CONFIG_XEN_PCI_PASSTHROUGH is just a global configuration option; the selection
of the actual files in hw/xen/meson.build is also conditional on CONFIG_XEN,
so there is no need to put CONFIG_XEN_PCI_PASSTHROUGH in config-target.h.

This inaccuracy was copied over from the configure script in commit
8a19980e3f ("configure: move accelerator logic to meson", 2020-10-03).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/xen/meson.build | 20 ++++++++++++--------
 meson.build        |  3 +--
 2 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/hw/xen/meson.build b/hw/xen/meson.build
index 076954b89c..08dc1f6857 100644
--- a/hw/xen/meson.build
+++ b/hw/xen/meson.build
@@ -8,13 +8,17 @@ softmmu_ss.add(when: ['CONFIG_XEN', xen], if_true: files(
 ))

 xen_specific_ss = ss.source_set()
-xen_specific_ss.add(when: 'CONFIG_XEN_PCI_PASSTHROUGH', if_true: files(
-  'xen-host-pci-device.c',
-  'xen_pt.c',
-  'xen_pt_config_init.c',
-  'xen_pt_graphics.c',
-  'xen_pt_load_rom.c',
-  'xen_pt_msi.c',
-), if_false: files('xen_pt_stub.c'))
+if have_xen_pci_passthrough
+  xen_specific_ss.add(files(
+    'xen-host-pci-device.c',
+    'xen_pt.c',
+    'xen_pt_config_init.c',
+    'xen_pt_graphics.c',
+    'xen_pt_load_rom.c',
+    'xen_pt_msi.c',
+  ))
+else
+  xen_specific_ss.add('xen_pt_stub.c')
+endif

 specific_ss.add_all(when: ['CONFIG_XEN', xen], if_true: xen_specific_ss)
diff --git a/meson.build b/meson.build
index b8046efcf1..84156df809 100644
--- a/meson.build
+++ b/meson.build
@@ -1627,6 +1627,7 @@ config_host_data.set('CONFIG_X11', x11.found())
 config_host_data.set('CONFIG_DBUS_DISPLAY', dbus_display)
 config_host_data.set('CONFIG_CFI', get_option('cfi'))
 config_host_data.set('CONFIG_SELINUX', selinux.found())
+config_host_data.set('CONFIG_XEN_PCI_PASSTHROUGH', have_xen_pci_passthrough)

 config_host_data.set('QEMU_VERSION', '"@0@"'.format(meson.project_version()))
 config_host_data.set('QEMU_VERSION_MAJOR', meson.project_version().split('.')[0])
 config_host_data.set('QEMU_VERSION_MINOR', meson.project_version().split('.')[1])
@@ -2228,8 +2229,6 @@ foreach target : target_dirs
       config_all += { sym: 'y' }
       if sym == 'CONFIG_TCG' and tcg_arch == 'tci'
         config_target += { 'CONFIG_TCG_INTERPRETER': 'y' }
-      elif sym == 'CONFIG_XEN' and have_xen_pci_passthrough
-        config_target += { 'CONFIG_XEN_PCI_PASSTHROUGH': 'y' }
       endif
       if target in modular_tcg
         config_target += { 'CONFIG_TCG_MODULAR': 'y' }
--
2.35.1